Earth Materials And Processes Understand Basic Concepts Of
Earth Materials and ProcessesUnderstand Basic Concepts of: tectonic cycle hydrologic cycle geochemical cycle rock cycle (interaction with above three) minerals (silicates, oxides, carbonates, etc.) weathering -- chemical, physical erosion, transport, deposition, lithificationGEOL g406 Environmental GeologyS. Hughes 2003
Tectonic Plates, Earthquakes, and Active VolcanoesGEOL g406 Environmental GeologyS. Hughes 2003
GEOL g406 Environmental GeologyS. Hughes 2003
Earth Materials and ProcessesThe Rock CycleTectonismcontrols the rockcycle and isimportant to manysurficialprocesses andother EarthCycles.GEOL g406 Environmental GeologyS. Hughes 2003
Earth Materials and ProcessesThe Hydrologic CycleGEOL g406 Environmental GeologyS. Hughes 2003
Earth Materials and ProcessesThe hydrologic cycle describes the movementof water between the mediums of atmosphere, earth,and ocean and back again. In the process, watererodes the land, transports elements as sediment or insolution, and provides essential water resources forhumans. Only 0.3 % of the total water in the cycleavailable for human use.QUESTIONS: Fresh water makes up what proportion of totalwater on earth? Approximately what percent of water worldwide isconsidered polluted?GEOL g406 Environmental GeologyS. Hughes 2003
Earth Materials and ProcessesThe Biogeochemical Cycle traces the movement ofan element, like carbon, in the air, water, on and in the land,and as used by living organisms. This issue is of particularimportance today because large amounts of carbon dioxideare produced by burning fossil fuels. Many scientists areconcerned that this trapped carbon dioxide may heat the earthin a process known as the "greenhouse effect."QUESTIONS: How much carbon dioxide enters the Earth’s atmosphereeach day? What is carbon dioxide’s residence time in theatmosphere? Where does the carbon "go" when its residence time in theatmosphere is over? (hint: check out the carbon cycle)GEOL g406 Environmental GeologyS. Hughes 2003
Strength of RocksGEOL g406 Environmental GeologyS. Hughes 2003
Earth Materials and ProcessesGEOL g406 Environmental GeologyS. Hughes 2003
Strength of RocksRock strength is highly variable.Many Factors: rock type texture chemical composition internal structures presence or absence of fluidsMost rocks already fractured by joints and faults.Fractured rocks are only as strong as whatever is holding therock together (gravity or friction). fracture along planes of weakness fracture along bedding planes or along foliation planes orientation of planes of weakness is important, Why?GEOL g406 Environmental GeologyS. Hughes 2003
Strength of RocksSome common rocks, shales for example, may share thesame name but have different engineering propertiesdepending on their deposition as well as lithificationprocesses.Compaction shales are weak and can slide alongbedding planes, slake (soften into mud when wet), and swellunder certain conditions.Cemented shales, depending on the cementing material,can be very strong and suitable for most engineeringenterprises. Study the stress-strain diagrams carefully.Read Table 2.1 in the textbook.GEOL g406 Environmental GeologyS. Hughes 2003
GEOL g406 Environmental GeologyS. Hughes 2003
GEOL g406 Environmental GeologyS. Hughes 2003
GEOL g406 Environmental GeologyS. Hughes 2003
Earth Materials and ProcessesTerms to Understand: hydrocompaction geologic cycle tectonic cycle rock cycle hydrologic cycle biogeochemical cycle greenhouse effect rock strength reliable strength safety factor stress and strain ductile and brittle substances elastic and plastic deformation proportional elastic limit ultimate strength rupture strengthRead Case Histories in the textbook:Baldwin Hills Dam and St. Francis DamGEOL g406 Environmental GeologyS. Hughes 2003
Earth Materials and Processes Understand Basic Concepts of: tectonic cycle hydrologic cycle geochemical cycle rock cycle (interaction with above three) minerals (silicates, oxides, carbonates, etc.) weathering -- chemical, physical erosion, transport, deposition, lithification GEOL g406 Environmental Geology S .
0.8 M Earth 1 M Earth 0.1 M Earth Planet Radius (R Earth): 0.95 R Earth 1 R Earth 0.5 R Earth Distance from Sun (DEarth): 0.7 D Earth 1 D Earth 1.5 D Earth Average Surface Temperature: 456 oC 10 oC -95 oC Atmosphere: T
EARTH / MOON WHITE EARTH / MIAMI WHITE EARTH / MULTICOLOR EARTH / LIGHT GREY colors EARTH / OUTDOOR 2CM EARTH / LIGHT GREY p.22 EARTH / DARK GREY p.26 EARTH / DARK GREY. 2 Drawing inspiration from the Dolomites in Northeastern Italy, Earth
Using (A) Earth, Earth’s Moon, Mars Comparison worksheet, ask students to make a prediction using a drawing of the Earth, Earth’s Moon, and Mars, showing what they think the sizes are in relationship to each other. B. Look at the image of Earth and Earth
Section 3: Exploring Earth's Moon Section 1: Earth Section 2: The Moon - Earth's Satellite. Chapter 23: The Sun-Earth-Moon System Section 1: Earth Grade 6 Earth Science . view at daybreak. Earth continues to spin, making it seem as if the Sun moves across the sky until it sets at night.
Earth's Materials and Systems Part 1: The History of Planet Earth 2015-08-27 www.njctl.org Slide 3 / 75 Table of Contents: The History of Planet Earth · Earth's Layers · Three Types of Rocks · Rock Strata · Early Life on Earth / Fossils Click on the topic to go to that section Slide 4 / 75 Earth'
Google Earth Community: Learn from other Google Earth users by asking questions and sharing answers on the Google Earth Community forums. Using Google Earth: This blog describes how you can use some of the interesting features of Google Earth. Selecting a Server Note: This section is relevant to Google Earth Pro and EC users.
the earth, daytime and nighttime occur. It takes 24 hours for one Earth rotation to occur. When one side of the Earth faces the Sun, it is daytime there and nighttime on the other side of the Earth. The shape of the Earth is like a flattened ball. Both ends of the Earth are slightly flat
Apr 30, 1992 · sistent fashion, a mental model of the earth other than the spherical earth model. Five alternative mental models of the earth were identified: the rectangular earth, the disc earth, the dual earth, the hollow sphere, and the flattened sphere. It is argued that these models a
